Graded B+ on resilience. In Vannus's assessment it has not disclosed which model it runs — resilient — owns model IP or routes across providers.
Open-source TypeScript framework for AI agents and applications. Vendor-published capabilities: typed agents defined with instructions, models, tools and runtime behaviour in one place; composable workflows with typed steps, retries and branches; working and semantic memory plus retrieval from APIs, databases and files; and observability through scorers, traces, metrics, datasets and evals. Connec
Not disclosed. Mastra does not publish which model it runs, so this criterion is excluded and the grade rests on what we could verify. We say so rather than guess.
Not yet assessed. We publish a sovereignty position only where the vendor documents one — we do not infer it from a domain or a company name.
Vannus grades Mastra against nine dimensions of trust — data sovereignty, training privacy, compliance posture, operational resilience, exit portability, and more. The heaviest criterion asks whether the tool builds its own AI or resells someone else's model; where the vendor discloses it, the grade cites the vendor's own documentation. No paid placements — scoring is walled off from affiliate revenue. See the methodology →